ICD-10 Code B96 – Other bacterial agents as the cause of diseases classified elsewhere (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B96 – Other bacterial agents as the cause of diseases classified elsewhere
What it is
B96 identifies a bacterial organism as the cause of another condition classified elsewhere. Use it only as an additional code when the record names the bacterial agent but the main diagnosis is coded elsewhere.
Clinical signs
Clinical features vary; refer to documentation. You may see an infection or inflammatory condition linked to a named bacterial agent, but B96 itself does not describe a disease or symptoms.
When to use this code
Use B96 when the provider documents a specific bacterial cause, and the underlying condition is coded separately. It supports etiologic coding for infections, complications, or inflammatory conditions. If the organism is not documented, check documentation before assigning it.
Do not use for
Do not use B96 as the principal diagnosis or for a condition that already has a more specific organism code. Avoid it when the chart only says “bacterial infection” without identifying the agent.
Coding tip
Pair B96 with the code for the underlying disease and confirm the organism is explicitly documented.